cache_req: add user enumeration

Resolves:
https://fedorahosted.org/sssd/ticket/3151

Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

1 files changed, 102 insertions, 0 deletions

diff --git a/src/responder/common/cache_req/plugins/cache_req_enum_users.c b/src/responder/common/cache_req/plugins/cache_req_enum_users.c
new file mode 100644
index 000000000..811afcf8e
--- /dev/null
+++ b/src/responder/common/cache_req/plugins/cache_req_enum_users.c
@@ -0,0 +1,102 @@
+/*
+    Authors:
+        Pavel Březina <pbrezina@redhat.com>
+
+    Copyright (C) 2016 Red Hat
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <talloc.h>
+#include <ldb.h>
+
+#include "db/sysdb.h"
+#include "util/util.h"
+#include "providers/data_provider.h"
+#include "responder/common/cache_req/cache_req_plugin.h"
+
+static const char *
+cache_req_enum_users_create_debug_name(TALLOC_CTX *mem_ctx,
+                                       struct cache_req_data *data,
+                                       struct sss_domain_info *domain)
+{
+    return talloc_strdup(mem_ctx, "Users enumeration");
+}
+
+static errno_t
+cache_req_enum_users_lookup(TALLOC_CTX *mem_ctx,
+                            struct cache_req *cr,
+                            struct cache_req_data *data,
+                            struct sss_domain_info *domain,
+                            struct ldb_result **_result)
+{
+    return sysdb_enumpwent_with_views(mem_ctx, domain, _result);
+}
+
+static errno_t
+cache_req_enum_users_dpreq_params(TALLOC_CTX *mem_ctx,
+                                  struct cache_req *cr,
+                                  struct ldb_result *result,
+                                  const char **_string,
+                                  uint32_t *_id,
+                                  const char **_flag)
+{
+    *_id = 0;
+    *_string = NULL;
+    *_flag = NULL;
+
+    return EOK;
+}
+
+struct cache_req_plugin cache_req_enum_users = {
+    .name = "Enumerate users",
+    .dp_type = SSS_DP_USER,
+    .attr_expiration = SYSDB_CACHE_EXPIRE,
+    .parse_name = false,
+    .bypass_cache = true,
+    .only_one_result = false,
+    .search_all_domains = true,
+    .require_enumeration = true,
+    .allow_missing_fqn = true,
+    .allow_switch_to_upn = false,
+    .upn_equivalent = CACHE_REQ_SENTINEL,
+    .get_next_domain_flags = 0,
+
+    .prepare_domain_data_fn = NULL,
+    .create_debug_name_fn = cache_req_enum_users_create_debug_name,
+    .global_ncache_add_fn = NULL,
+    .ncache_check_fn = NULL,
+    .ncache_add_fn = NULL,
+    .lookup_fn = cache_req_enum_users_lookup,
+    .dpreq_params_fn = cache_req_enum_users_dpreq_params
+};
+
+struct tevent_req *
+cache_req_enum_users_send(TALLOC_CTX *mem_ctx,
+                          struct tevent_context *ev,
+                          struct resp_ctx *rctx,
+                          struct sss_nc_ctx *ncache,
+                          int cache_refresh_percent,
+                          const char *domain)
+{
+    struct cache_req_data *data;
+
+    data = cache_req_data_enum(mem_ctx, CACHE_REQ_ENUM_USERS);
+    if (data == NULL) {
+        return NULL;
+    }
+
+    return cache_req_steal_data_and_send(mem_ctx, ev, rctx, ncache,
+                                         cache_refresh_percent, domain, data);
+}